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The BreezeMax Si is designed for indoor deployment, the company says, and works with their existing WiMax gear. The 802.16-2004-based CPE (using chips from Intel) handles both FDD and TDD (frequency time division duplexing), and implicitly can work with the same 2 GHz to 6 GHz range of possible frequencies that their BreezeMax base stations can operate in. FDD requires dedicated frequencies for uplink and downlink, while TDD uses synchronization to allow dynamic asymmetric traffic flows. Both have their supporters.

The supports of FDD and TDD along with a wide frequency range is a critical feature for WiMax CPEs as there are so many potential profiles that combine a channel width, duplexing type, and spectrum band that having inflexible CPE would limit sales even in the U.S., much less internationally.

The unit comes with an integral 9 dBi antenna, and an external, window-mountable 12 dBi antenna.